US20150075937A1 - Bearing structure - Google Patents
Bearing structure Download PDFInfo
- Publication number
- US20150075937A1 US20150075937A1 US14/029,808 US201314029808A US2015075937A1 US 20150075937 A1 US20150075937 A1 US 20150075937A1 US 201314029808 A US201314029808 A US 201314029808A US 2015075937 A1 US2015075937 A1 US 2015075937A1
- Authority
- US
- United States
- Prior art keywords
- inner ring
- middle base
- assembled
- positioning opening
- elastomer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
- F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
- F16D41/067—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical and the members being distributed by a separate cage encircling the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D2041/0608—Races with a regular polygon shape
Definitions
- the present invention relates to a structure and more particularly to a bearing structure.
- a bearing is a machine element that constrains relative motion between moving parts to only the desired motion.
- the design of the bearing may, for example, provide for free linear movement of the moving part or for free rotation around a fixed axis; or, it may prevent a motion by controlling the vectors of normal forces that bear on the moving parts.
- Many bearings also facilitate the desired motion as much as possible, such as by minimizing friction.
- Bearings are classified broadly according to the type of operation, the motions allowed, or to the directions of the loads (forces) applied to the parts. Specially, a unidirectional bearing only allows a shaft to rotate at one direction; in other words, a rotation at another direction of the shaft is prohibited.
- the present invention has arisen to mitigate and/or obviate the disadvantages of the conventional.
- the main objective of the present invention is to provide an improved bearing structure.
- a bearing structure comprises an outer ring, an inner ring, a middle base and a plurality of roller sets, the middle base sandwiched in between the outer ring and the inner ring, the middle base assembled at a center of the outer ring, the middle base having an assembling hole opened at a center thereof, the inner ring assembled in the assembling hole, a rotation of the inner ring driving the middle base to rotate, the rotation of the middle base driving the outer ring to rotate, the middle base having a plurality of positioning openings opened on a wall of the assembling hole therethrough, each positioning opening having two grooves respectively defined at two opposite walls thereof, each roller set assembled in each corresponding positioning opening, two ends of each roller set respectively inserted into the two grooves of each corresponding positioning opening, an elastomer assembled in each positioning opening, the elastomer located between the two grooves, two ends of the elastomer respectively abutting against another wall of each positioning opening and one end of each corresponding roller set.
- each positioning opening has a positioning hole opened at another wall thereof; one end of the elastomer abuts against a bottom of the positioning hole of each positioning opening; each roller set has a roller member and a frame; the frame has two pivot aims defined at one end thereof; the two pivot arms are spaced from each other, so that the frame is U-shaped; each pivot arm is assembled at each corresponding groove; the roller member is assembled between the two pivot arms; the roller member is rotatable between two ends of the two pivot arms; the frame has a rod defined at another end thereof; another end of the elastomer is mounted around the rod and abuts against the frame of each corresponding roller set; a shape of the assembling hole is the same as a shape of the inner ring; the assembling hole and the inner ring are both polygonal.
- FIG. 1 is a perspective view of the present invention
- FIG. 2 is a perspective view for showing each groove and each roller set defined in the present invention
- FIG. 3 is an exploded view of the present invention
- FIG. 4 is an exploded view for showing each groove and each roller set defined in the present invention.
- FIG. 5 is a cross-sectional view for showing an inner ring being clockwise rotated.
- FIG. 6 is a cross-sectional view for showing the inner ring being counterclockwise rotated.
- a bearing structure in accordance with the present invention comprises an outer ring 1 , an inner ring 2 , a middle base 3 and a plurality of roller sets 4 .
- the inner ring 2 is hexagon-shaped.
- the middle base 3 is sandwiched in between the outer ring 1 and the inner ring 2 .
- the middle base 3 is assembled at a center of the outer ring 1 .
- the middle base 3 has an assembling hole 31 opened at a center thereof.
- a shape of the assembling hole 31 is the same as a shape of the inner ring 2 .
- the assembling hole 31 and the inner ring 2 are both polygonal.
- the inner ring 2 is assembled in the assembling hole 31 .
- a rotation of the inner ring 2 drives the middle base 3 to rotate.
- the rotation of the middle base 3 drives the outer ring 1 to rotate.
- the middle base 3 has a plurality of positioning openings 32 opened on a wall of the assembling hole 31 therethrough. Each two adjacent positioning openings 32 are spaced from each other. Each positioning opening 32 has two grooves 33 respectively defined at two opposite walls thereof.
- Each roller set 4 is assembled in each corresponding positioning opening 32 . Two ends of each roller set 4 are respectively inserted into the two grooves 33 of each corresponding positioning opening 32 .
- An elastomer 5 is assembled in each positioning opening 32 .
- the elastomer 5 is located between the two grooves 33 . Two ends of the elastomer 5 respectively abut against another wall of each positioning opening 32 and one end of each corresponding roller set 4 . A recovery force of the elastomer 5 pushes each roller set 4 away from another wall of each corresponding positioning opening 32 .
- each roller set 4 has a roller member 41 and a frame 42 .
- the frame 42 has two pivot arms 421 defined at one end thereof.
- the two pivot arms 421 are spaced from each other, so that the frame 42 is U-shaped.
- Each pivot arm 421 is assembled at each corresponding groove 33 .
- the roller member 41 is assembled between the two pivot arms 421 .
- the roller member 41 is rotatable between two ends of the two pivot arms 421 .
- the frame 42 has a rod 422 defined at another end thereof.
- Each positioning opening 32 has a positioning hole 321 opened at another wall thereof, so that one end of the elastomer 5 corresponds to another wall of each positioning opening 32 .
- One end of the elastomer 5 is inserted into the positioning hole 321 , so that one end of the elastomer 5 abuts against a bottom of the positioning hole 321 of each positioning opening 32 ; another end of the elastomer 5 is mounted around the rod 422 and abuts against the frame 42 of each corresponding roller set 4 (as shown in FIGS. 3-4 ).
- each of two ends of the roller member 41 is inserted into each corresponding groove 33 , so that each roller set 4 is smoothly movable along the two grooves 33 in each positioning opening 32 ; therefore, when each roller set 4 is moved along the two grooves 33 in each positioning opening 32 , the roller member 41 and the frame 42 would not be unexpectedly derailed from the two grooves 33 (as shown in FIGS. 2 and 4 ).
- annular cover portion 34 is assembled at one outer side of the middle base 3 .
- the annular cover portion 34 corresponds to each positioning opening 32 .
- the annular cover portion 34 is configured to prevent outside dust from flowing into each positioning opening 32 .
- the present invention would not be broken even if the inner ring 2 is unexpectedly rotated at a wrong direction (such as a counterclockwise direction in the embodiment of the present invention).
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A bearing structure includes an outer ring, an inner ring, a middle base and a plurality of roller sets, the middle base sandwiched in between the outer ring and the inner ring, the middle base assembled at the outer ring, the middle base having an assembling hole opened at a center thereof, the inner ring assembled in the assembling hole, the middle base having a plurality of positioning openings opened on a wall of the assembling hole therethrough, each positioning opening having two grooves defined at two opposite walls thereof, each roller set assembled in each positioning opening, two ends of each roller set respectively inserted into the two grooves of each positioning opening, an elastomer assembled in each positioning opening, the elastomer located between the two grooves, two ends of the elastomer respectively abutting against another wall of each positioning opening and one end of each roller set.
Description
- 1. Field of the Invention
- The present invention relates to a structure and more particularly to a bearing structure.
- 2. Description of Related Art
- A bearing is a machine element that constrains relative motion between moving parts to only the desired motion. The design of the bearing may, for example, provide for free linear movement of the moving part or for free rotation around a fixed axis; or, it may prevent a motion by controlling the vectors of normal forces that bear on the moving parts. Many bearings also facilitate the desired motion as much as possible, such as by minimizing friction. Bearings are classified broadly according to the type of operation, the motions allowed, or to the directions of the loads (forces) applied to the parts. Specially, a unidirectional bearing only allows a shaft to rotate at one direction; in other words, a rotation at another direction of the shaft is prohibited.
- However, if the shaft is unexpectedly rotated at another direction, the unidirectional bearing would be broken.
- The present invention has arisen to mitigate and/or obviate the disadvantages of the conventional.
- The main objective of the present invention is to provide an improved bearing structure.
- To achieve the objective, a bearing structure comprises an outer ring, an inner ring, a middle base and a plurality of roller sets, the middle base sandwiched in between the outer ring and the inner ring, the middle base assembled at a center of the outer ring, the middle base having an assembling hole opened at a center thereof, the inner ring assembled in the assembling hole, a rotation of the inner ring driving the middle base to rotate, the rotation of the middle base driving the outer ring to rotate, the middle base having a plurality of positioning openings opened on a wall of the assembling hole therethrough, each positioning opening having two grooves respectively defined at two opposite walls thereof, each roller set assembled in each corresponding positioning opening, two ends of each roller set respectively inserted into the two grooves of each corresponding positioning opening, an elastomer assembled in each positioning opening, the elastomer located between the two grooves, two ends of the elastomer respectively abutting against another wall of each positioning opening and one end of each corresponding roller set.
- Wherein, each positioning opening has a positioning hole opened at another wall thereof; one end of the elastomer abuts against a bottom of the positioning hole of each positioning opening; each roller set has a roller member and a frame; the frame has two pivot aims defined at one end thereof; the two pivot arms are spaced from each other, so that the frame is U-shaped; each pivot arm is assembled at each corresponding groove; the roller member is assembled between the two pivot arms; the roller member is rotatable between two ends of the two pivot arms; the frame has a rod defined at another end thereof; another end of the elastomer is mounted around the rod and abuts against the frame of each corresponding roller set; a shape of the assembling hole is the same as a shape of the inner ring; the assembling hole and the inner ring are both polygonal.
- Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
-
FIG. 1 is a perspective view of the present invention; -
FIG. 2 is a perspective view for showing each groove and each roller set defined in the present invention; -
FIG. 3 is an exploded view of the present invention; -
FIG. 4 is an exploded view for showing each groove and each roller set defined in the present invention; -
FIG. 5 is a cross-sectional view for showing an inner ring being clockwise rotated; and -
FIG. 6 is a cross-sectional view for showing the inner ring being counterclockwise rotated. - Referring to
FIGS. 1-4 , a bearing structure in accordance with the present invention comprises anouter ring 1, aninner ring 2, amiddle base 3 and a plurality ofroller sets 4. Theinner ring 2 is hexagon-shaped. Themiddle base 3 is sandwiched in between theouter ring 1 and theinner ring 2. Themiddle base 3 is assembled at a center of theouter ring 1. Themiddle base 3 has an assemblinghole 31 opened at a center thereof. A shape of the assemblinghole 31 is the same as a shape of theinner ring 2. The assemblinghole 31 and theinner ring 2 are both polygonal. Theinner ring 2 is assembled in the assemblinghole 31. A rotation of theinner ring 2 drives themiddle base 3 to rotate. The rotation of themiddle base 3 drives theouter ring 1 to rotate. Themiddle base 3 has a plurality ofpositioning openings 32 opened on a wall of the assemblinghole 31 therethrough. Each twoadjacent positioning openings 32 are spaced from each other. Each positioning opening 32 has twogrooves 33 respectively defined at two opposite walls thereof. Eachroller set 4 is assembled in each corresponding positioning opening 32. Two ends of eachroller set 4 are respectively inserted into the twogrooves 33 of eachcorresponding positioning opening 32. Anelastomer 5 is assembled in each positioning opening 32. Theelastomer 5 is located between the twogrooves 33. Two ends of theelastomer 5 respectively abut against another wall of each positioning opening 32 and one end of each corresponding roller set 4. A recovery force of theelastomer 5 pushes each roller set 4 away from another wall of each corresponding positioning opening 32. - Furthermore, each
roller set 4 has aroller member 41 and aframe 42. Theframe 42 has twopivot arms 421 defined at one end thereof. The twopivot arms 421 are spaced from each other, so that theframe 42 is U-shaped. Eachpivot arm 421 is assembled at eachcorresponding groove 33. Theroller member 41 is assembled between the twopivot arms 421. Theroller member 41 is rotatable between two ends of the twopivot arms 421. Theframe 42 has arod 422 defined at another end thereof. Eachpositioning opening 32 has apositioning hole 321 opened at another wall thereof, so that one end of theelastomer 5 corresponds to another wall of each positioning opening 32. One end of theelastomer 5 is inserted into thepositioning hole 321, so that one end of theelastomer 5 abuts against a bottom of thepositioning hole 321 of each positioning opening 32; another end of theelastomer 5 is mounted around therod 422 and abuts against theframe 42 of each corresponding roller set 4 (as shown inFIGS. 3-4 ). Each of two ends of theroller member 41 is inserted into eachcorresponding groove 33, so that each roller set 4 is smoothly movable along the twogrooves 33 in each positioning opening 32; therefore, when eachroller set 4 is moved along the twogrooves 33 in each positioning opening 32, theroller member 41 and theframe 42 would not be unexpectedly derailed from the two grooves 33 (as shown inFIGS. 2 and 4 ). - Under this arrangement, when the
inner ring 2 is not rotated yet, theroller member 41 is clockwise and counterclockwise rotatable in each positioning opening 32; theroller member 41 is not clamped by theouter ring 1 and theinner ring 2 yet. Referring toFIG. 5 , when theinner ring 2 is clockwise rotated, theroller member 41 is counterclockwise rotated by the clockwise rotation of theinner ring 2 and is moved along the twogrooves 33 toward each corresponding outer corner of theinner ring 2, until theroller member 41 is tightly clamped by an inner wall of theouter ring 1 and each corresponding outer corner of theinner ring 2; as a result, theouter ring 1 is rotated by the clockwise rotation of theinner ring 2, because theroller member 41 is tightly clamped by theouter ring 1 and theinner ring 2. Referring toFIG. 6 , in contrast, when theinner ring 2 is counterclockwise rotated, theroller member 41 is clockwise rotated by the counterclockwise rotation of theinner ring 2 and is moved along the twogrooves 33 back toward theelastomer 5, until theroller member 41 is released from the inner wall of theouter ring 1 and each corresponding outer corner of theinner ring 2; simultaneously, the recovery force of theelastomer 5 pushes against theroller member 41 so as to be prevent theroller member 41 from moving over; as a result, theouter ring 1 is not rotated by the counterclockwise rotation of theinner ring 2, because theroller member 41 is released from theouter ring 1 and theinner ring 2. - Furthermore, an
annular cover portion 34 is assembled at one outer side of themiddle base 3. Theannular cover portion 34 corresponds to each positioning opening 32. Theannular cover portion 34 is configured to prevent outside dust from flowing into each positioning opening 32. - All in all, the present invention would not be broken even if the
inner ring 2 is unexpectedly rotated at a wrong direction (such as a counterclockwise direction in the embodiment of the present invention). - Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.
Claims (4)
1. A bearing structure comprising an outer ring, an inner ring, a middle base and a plurality of roller sets, the middle base sandwiched in between the outer ring and the inner ring, the middle base assembled at a center of the outer ring, the middle base having an assembling hole opened at a center thereof, the inner ring assembled in the assembling hole, a rotation of the inner ring driving the middle base to rotate, the rotation of the middle base driving the outer ring to rotate, the middle base having a plurality of positioning openings opened on a wall of the assembling hole therethrough, each positioning opening having two grooves respectively defined at two opposite walls thereof, each roller set assembled in each corresponding positioning opening, two ends of each roller set respectively inserted into the two grooves of each corresponding positioning opening, an elastomer assembled in each positioning opening, the elastomer located between the two grooves, two ends of the elastomer respectively abutting against another wall of each positioning opening and one end of each corresponding roller set.
2. The bearing structure as claimed in claim 1 , wherein each positioning opening has a positioning hole opened at another wall thereof; one end of the elastomer abuts against a bottom of the positioning hole of each positioning opening.
3. The bearing structure as claimed in claim 2 , wherein each roller set has a roller member and a frame; the frame has two pivot arms defined at one end thereof; the two pivot arms are spaced from each other, so that the frame is U-shaped; each pivot arm is assembled at each corresponding groove; the roller member is assembled between the two pivot arms; the roller member is rotatable between two ends of the two pivot arms; the frame has a rod defined at another end thereof;
another end of the elastomer is mounted around the rod and abuts against the frame of each corresponding roller set.
4. The bearing structure as claimed in claim 3 , wherein a shape of the assembling hole is the same as a shape of the inner ring; the assembling hole and the inner ring are both polygonal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/029,808 US20150075937A1 (en) | 2013-09-18 | 2013-09-18 | Bearing structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/029,808 US20150075937A1 (en) | 2013-09-18 | 2013-09-18 | Bearing structure |
Publications (1)
Publication Number | Publication Date |
---|---|
US20150075937A1 true US20150075937A1 (en) | 2015-03-19 |
Family
ID=52666961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/029,808 Abandoned US20150075937A1 (en) | 2013-09-18 | 2013-09-18 | Bearing structure |
Country Status (1)
Country | Link |
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US (1) | US20150075937A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107532660A (en) * | 2015-04-09 | 2018-01-02 | 克诺尔商用车制动系统有限公司 | Roller one-way clutch |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US835448A (en) * | 1906-04-27 | 1906-11-06 | Cuthbert B Lowry | Wrench. |
US2069558A (en) * | 1933-11-04 | 1937-02-02 | Borg Warner | Freewheeling clutch |
US2203805A (en) * | 1939-06-20 | 1940-06-11 | Lawrence E Wiggs | Escapementlike clutch |
GB1103539A (en) * | 1965-10-19 | 1968-02-14 | Stieber Rollkupplung K G | Clutches |
US4415072A (en) * | 1980-04-10 | 1983-11-15 | Nsk-Warner K. K. | One-way clutch |
DE102011082215A1 (en) * | 2011-09-07 | 2013-03-07 | Schaeffler Technologies AG & Co. KG | Free-wheel for crank-continuous variable transmission (CVT) gearbox installed e.g. has cage that is provided with attenuation tabs that are arranged radially inwardly with respect to clamping structures provided in cage |
-
2013
- 2013-09-18 US US14/029,808 patent/US20150075937A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US835448A (en) * | 1906-04-27 | 1906-11-06 | Cuthbert B Lowry | Wrench. |
US2069558A (en) * | 1933-11-04 | 1937-02-02 | Borg Warner | Freewheeling clutch |
US2203805A (en) * | 1939-06-20 | 1940-06-11 | Lawrence E Wiggs | Escapementlike clutch |
GB1103539A (en) * | 1965-10-19 | 1968-02-14 | Stieber Rollkupplung K G | Clutches |
US4415072A (en) * | 1980-04-10 | 1983-11-15 | Nsk-Warner K. K. | One-way clutch |
DE102011082215A1 (en) * | 2011-09-07 | 2013-03-07 | Schaeffler Technologies AG & Co. KG | Free-wheel for crank-continuous variable transmission (CVT) gearbox installed e.g. has cage that is provided with attenuation tabs that are arranged radially inwardly with respect to clamping structures provided in cage |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107532660A (en) * | 2015-04-09 | 2018-01-02 | 克诺尔商用车制动系统有限公司 | Roller one-way clutch |
US20180031056A1 (en) * | 2015-04-09 | 2018-02-01 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | One-Way Roller Clutch |
US10941820B2 (en) * | 2015-04-09 | 2021-03-09 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | One-way roller clutch |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |